Home / 1,220,323.84-1,683,048.40-858,944

Finding the Fourth Proportional to 1,220,323.84, 1,683,048.40 and 858,944

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Solution

The fourth proportional to 1,220,323.84, 1,683,048.40 and 858,944 is: 1,184,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,323.84 : 1,683,048.40 = 858,944 : x
  2. Step 2: Convert to fraction form
    1,220,323.84/1,683,048.40 = 858,944/x
  3. Step 3: Cross multiply
    1,220,323.84x = 1,683,048.40 × 858,944
  4. Step 4: Simplify right side
    1,220,323.84x = 1,445,644,324,889.60
  5. Step 5: Solve for x
    x = 1,445,644,324,889.60/1,220,323.84
  6. Step 6: Final answer
    x = 1,184,639.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.